US11499060B2 - Liquid capsule having thermochromic and photochromic properties - Google Patents

Liquid capsule having thermochromic and photochromic properties Download PDF

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Publication number
US11499060B2
US11499060B2 US16/052,772 US201816052772A US11499060B2 US 11499060 B2 US11499060 B2 US 11499060B2 US 201816052772 A US201816052772 A US 201816052772A US 11499060 B2 US11499060 B2 US 11499060B2
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Prior art keywords
particles
thermochromic
density
photochromic
liquid
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US20190048211A1 (en
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Nicolas FRANCOIS
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Swatch Group Research and Development SA
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Swatch Group Research and Development SA
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/26—Thermosensitive paints
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/01—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/16—Solid spheres
    • C08K7/18—Solid spheres inorganic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/02—Ingredients treated with inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/22—Luminous paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
    • C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K9/00—Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/48—Photometry, e.g. photographic exposure meter using chemical effects
    • G01J1/50—Photometry, e.g. photographic exposure meter using chemical effects using change in colour of an indicator, e.g. actinometer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/002—Photosensitive materials containing microcapsules
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
    • G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/06—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/06—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass
    • G04B47/068—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass with a thermometer

Definitions

  • thermochromic components and to photochromic components, in particular applied to the field of watchmaking.
  • Thermochromic capsules which change colour reversibly when the temperature rises above or falls below a threshold value, are known.
  • the patent document EP 0 602 537 A1 describes in particular a watch provided with a temperature-indicating device produced based on such capsules. The watch makes it possible to indicate the temperature of the environment in which it is found, independently of the fact that the watch is worn or not worn.
  • Photochromic capsules which change colour reversibly in reaction to exposure to light rays, are also known.
  • the patent document CH 710 489 describes in particular a watch provided with a bezel comprising indicators produced based on such capsules.
  • the aim of the present invention is thus to provide a capsule exhibiting thermochromic properties and photochromic properties.
  • the invention relates to a capsule comprising a shell containing a transparent and thermally conducting liquid, particles having a thermochromic coating and particles having a photochromic coating.
  • thermochromic particles and the photochromic particles are such that their densities are less than the density of the liquid. Thus, they are in suspension in the liquid. Since the thermochromic particles are bulkier than the photochromic particles, the predominant effect in the capsule is thermochromism.
  • thermochromic particles are such that their density is greater than the density of the liquid, whereas the photochromic particles are such that their density is lower than the density of the liquid.
  • the thermochromic particles sink, whereas the photochromic particles remain in suspension: the predominant effect in the capsule is thus photochromism.
  • FIG. 1 a capsule according to an embodiment of the invention, when its temperature lies within a first range of temperatures.
  • FIG. 2 the capsule of FIG. 1 , when its temperature lies within a second range of higher temperatures.
  • FIG. 1 represents a capsule (CS) comprising a transparent leaktight shell (CQ).
  • the shell (CQ) includes a transparent liquid (L) which does not form a barrier to ultraviolet rays, which is thermally conducting and which has a high thermal expansion at a preferred temperature, which will be denoted Tx. It can, for example, be an oily mixture of a liquid paraffin having a melting point Tx and glycerol.
  • the shell (CQ) also includes two types of particles. The first particles are coated with a thermochromic coating; they will be referred to as thermochromic particles (A). The second particles are coated with a photochromic coating; they will be referred to as photochromic particles (B).
  • thermochromic and photochromic coatings are chosen so as to withstand the oily medium. They are also selected so as to have a coloured transition threshold which makes it possible to give advantageous information, in particular to a wearer of a timepiece or item of jewellery, in the case where the capsule is placed on a wall of said timepiece or item of jewellery. This information can be a temperature, a light intensity, a level of ultraviolet radiation dangerous to the health, and the like.
  • thermochromic particles (A) and the photochromic particles (B) have, for example, a diameter of between 100 and 500 microns. Furthermore, the volume of the thermochromic particles (A) is greater than the volume of the photochromic particles (B). Finally, the density of the thermochromic particles (A) is higher than the density of the photochromic particles (B).
  • the density of the liquid (L) is greater than the density of the thermochromic particles (A) and than the density of the photochromic particles (B).
  • the thermochromic particles (A) and the photochromic particles (B) are in suspension in the liquid (L).
  • the photochromic particles (B) are masked by the thermochromic particles (A), which have a larger volume and consequently a greater chromatic power.
  • the dominant aesthetic effect in the capsule (CS) is thermochromism.
  • the liquid (L) has a lower density than that which it had in the first range of temperatures.
  • the density of the liquid (L) is such that it is greater than the density of the photochromic particles (B) but lower than the density of the thermochromic particles (A).
  • the thermochromic particles (A) which are denser, settle out, that is to say sink and are deposited at the bottom of the shell (CQ).
  • the photochromic particles (B) remain in suspension.
  • the dominant aesthetic effect in the capsule (CS) is thus photochromism.
  • the shell (CQ) additionally contains particles of a third type, photoluminescent particles, which make it possible to see coloured transitions by night.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Polymers & Plastics (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Toys (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Adornments (AREA)
  • Electric Clocks (AREA)
  • Paints Or Removers (AREA)
US16/052,772 2017-08-09 2018-08-02 Liquid capsule having thermochromic and photochromic properties Active 2041-09-16 US11499060B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP17185561 2017-08-09
EP17185561.2A EP3441826B1 (fr) 2017-08-09 2017-08-09 Capsule liquide a proprietes thermochromique et photochromique
EP17185561.2 2017-08-09

Publications (2)

Publication Number Publication Date
US20190048211A1 US20190048211A1 (en) 2019-02-14
US11499060B2 true US11499060B2 (en) 2022-11-15

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US16/052,772 Active 2041-09-16 US11499060B2 (en) 2017-08-09 2018-08-02 Liquid capsule having thermochromic and photochromic properties

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US (1) US11499060B2 (zh)
EP (1) EP3441826B1 (zh)
JP (1) JP6549293B2 (zh)
CN (1) CN109387298B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111100604A (zh) * 2019-12-13 2020-05-05 广州盛色科技有限公司 一种复合变色储能胶囊及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0561132A (ja) 1991-08-30 1993-03-12 Matsui Shikiso Kagaku Kogyosho:Kk 熱及び光可逆変色性マイクロカプセル
GB2431159A (en) 2005-10-12 2007-04-18 Fikri Mehmet Thermochromic and/or photochromic composition
US20140187668A1 (en) 2012-12-28 2014-07-03 Chromatic Technologies, Inc. Stabilizing additives for thermochromic pigments
EP3172982A1 (fr) 2015-11-30 2017-05-31 The Swatch Group Research and Development Ltd. Procede de decoration selectif d'un composant horloger
WO2017191346A1 (es) * 2016-05-03 2017-11-09 Fundació Institut Català De Nanociència I Nanotecnologia Película de material polimérico con propiedades termo-fotocromicas para regulación del color de superficies acristaladas y materiales plásticos

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CH685088B5 (fr) 1992-12-17 1995-09-29 Asulab Sa Montre munie d'un dispositif indicateur de températures.
JP2001207326A (ja) * 2000-01-25 2001-08-03 Matsui Shikiso Chem Co Ltd 光可逆変色性ポリオレフィン繊維
CN1791914A (zh) * 2003-03-18 2006-06-21 皇家飞利浦电子股份有限公司 包括热致变色或光致变色材料的光信息载体
US8461582B2 (en) * 2009-03-05 2013-06-11 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device and method for manufacturing the same
BR112013031233B1 (pt) * 2011-06-06 2021-03-09 Transitions Optical, Inc artigo fotocrômico
US8652996B2 (en) * 2011-12-31 2014-02-18 Sanford, L.P. Irreversible thermochromic pigment capsules
RU2494083C1 (ru) * 2012-05-04 2013-09-27 Федеральное государственное бюджетное учреждение науки Институт водных и экологических проблем Дальневосточного отделения Российской академии наук (ИВЭП ДВО РАН) Способ приготовления компоста из осадка сточных вод с применением фототрофных бактерий
WO2014095682A1 (en) * 2012-12-20 2014-06-26 Sicpa Holding Sa Chiral liquid crystal polymer layer or pattern comprising randomly distributed craters therein
US9528004B2 (en) * 2013-03-15 2016-12-27 Segan Industries, Inc. Compounds for reducing background color in color change compositions
CH710489B1 (fr) 2014-12-15 2022-09-30 The Swatch Group Rech Et Developpement Ltd Elément d'habillage d'une pièce d'horlogerie comprenant un capteur de luminosité.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0561132A (ja) 1991-08-30 1993-03-12 Matsui Shikiso Kagaku Kogyosho:Kk 熱及び光可逆変色性マイクロカプセル
GB2431159A (en) 2005-10-12 2007-04-18 Fikri Mehmet Thermochromic and/or photochromic composition
US20140187668A1 (en) 2012-12-28 2014-07-03 Chromatic Technologies, Inc. Stabilizing additives for thermochromic pigments
US20160108309A1 (en) 2012-12-28 2016-04-21 Chromatic Technologies, Inc. Stabilizing Additives For Thermochromic Pigments
US20170189880A1 (en) 2012-12-28 2017-07-06 Chromatic Technologies, Inc. Stabilizing Additives For Thermochromic Pigments
EP3172982A1 (fr) 2015-11-30 2017-05-31 The Swatch Group Research and Development Ltd. Procede de decoration selectif d'un composant horloger
WO2017191346A1 (es) * 2016-05-03 2017-11-09 Fundació Institut Català De Nanociència I Nanotecnologia Película de material polimérico con propiedades termo-fotocromicas para regulación del color de superficies acristaladas y materiales plásticos
ES2645297A1 (es) 2016-05-03 2017-12-04 Fundació Institut Català De Nanociència I Nanotecnologia Película de material polimérico con propiedades termo-fotocromicas para regulación del color de superficies acristaladas y materiales plásticos

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
European Search Report dated Feb. 20, 2018 in European Application 17185561.2, filed Aug. 9, 2017 (with English Translation of Categories of Cited Documents).

Also Published As

Publication number Publication date
JP2019032318A (ja) 2019-02-28
US20190048211A1 (en) 2019-02-14
CN109387298A (zh) 2019-02-26
EP3441826A1 (fr) 2019-02-13
JP6549293B2 (ja) 2019-07-24
CN109387298B (zh) 2020-04-24
EP3441826B1 (fr) 2020-06-03

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